Osha Attorneys
Osha Attorneys
Osha Attorneys
Osha Attorneys
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The collective expertise of our global team distinguishes OBWB in the field of Intellectual Property Law. We align our best resources to meet each client's specific needs and we treat each matter with the highest degree of attention and care.

OBWB Earns 2026 IAM Patent 1000 Ranking

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We are delighted and honored to be ranked once again on the IAM Patent 1000 annual list. Hailed as the definitive guide to the world's leading patent professionals, this recognition reflects the expertise and dedication — at both individual and firm level — that OBWB brings to every client matter.

IAM Patent 1000 (2026): "Offering elevated patent prosecution services to a global clientele, Osha Bergman Watanabe & Burton has earned a reputation as an “A+ firm”. With a deep bench of attorneys holding advanced technical degrees, they are frequently sought after by leaders in the technology space. Veteran practitioner Jonathan Osha is highly sought after for his strategic counsel in managing complex international IP portfolios, making him a reliable and trusted expert in the field. Also on the roster, Jeffrey Bergman brings his encyclopaedic knowledge of patent law, which he combines with his deep expertise in chemistry. He is well placed to delve into the intricacies of his clients’ patents and understand their unique business needs. Also offering high-level prosecution services, Carlyn Burton can be relied on for her straightforward approach and ability to identify creative strategies when filing patents. She backs this up with a strong foundation in science and more than two decades of expertise."

We are proud to be recognized among so many outstanding firms and wish our fellow honorees our warmest congratulations.